Visible-Light-Photosensitized Aryl and Alkyl Decarboxylative Functionalization Reactions 0001/01/01Previous Direct Dearomatization of Pyridines via an Energy-Transfer-Catalyzed Intramolecular [4+2] CycloadditionNextSynthesis of β-Substituted γ-Aminobutyric Acid Derivatives via Enantioselective Photoredox Catalysis